21530564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{3853}}^1$

素因数の和:3995

約数の個数: 24

約数和(自身を含む): 41438208

約数和(自身を除く): 19907644

約数列:

[1, 2, 4, 11, 22, 44, 127, 254, 508, 1397, 2794, 3853, 5588, 7706, 15412, 42383, 84766, 169532, 489331, 978662, 1957324, 5382641, 10765282, 21530564]

約数ペア:

[(1, 21530564), (2, 10765282), (4, 5382641), (11, 1957324), (22, 978662), (44, 489331), (127, 169532), (254, 84766), (508, 42383), (1397, 15412), (2794, 7706), (3853, 5588)]